<template>
	<view class="goods-detail" v-if="goods_info.goods_price">
		<!-- 轮播图 -->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000">
			<swiper-item v-for="(item, i) in goods_info.pics">
				<image :src="item.pics_big" @click="preview(i)"></image>
			</swiper-item>
		</swiper>
		<!-- 商品信息 -->
		<view class="goods-info-box">
			<view class="goods-price">￥{{goods_info.goods_price}}</view>
			<view class="goods-info-body">
				<view class="goods-name">{{goods_info.goods_name}}</view>
				<view class="favi">
					<uni-icons type="star" size="18" color="gray"></uni-icons>
					<text>收藏</text>
				</view>
			</view>
			<view class="kd">快递:免运费</view>
		</view>
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		<view class="goods_nav">
			<uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick"
				@buttonClick="buttonClick" />
		</view>
	</view>
</template>

<script>
	import {
		mapMutations,
		mapGetters
	} from 'vuex'
	import cart from '../../store/cart'
	export default {
		data() {
			return {
				goods_info: [],
				options: [{
					icon: 'shop',
					text: '店铺',
					infoColor: "red"
				}, {
					icon: 'cart',
					text: '购物车',
					info: 0
				}],
				buttonGroup: [{
						text: '加入购物车',
						backgroundColor: '#ff0000',
						color: '#fff'
					},
					{
						text: '立即购买',
						backgroundColor: '#ffa200',
						color: '#fff'
					}
				]

			};
		},
		computed: {
			...mapGetters('m_cart', ['total'])
		},
		watch: {
			total: {
				handler(newval) {
					this.options[1].info = newval
				},
				immediate:true
			}
		},
		onLoad(option) {
			this.getGoodsDetail(option.goods_id)
		},
		methods: {
			// 把 m_cart 模块中的 addToCart 方法映射到当前页面使用
			...mapMutations('m_cart', ['addCart']),
			async getGoodsDetail(goods_id) {
				const {
					data: res
				} = await uni.$http.get("/api/public/v1/goods/detail", {
					goods_id: goods_id
				});
				if (res.meta.status !== 200) return uni.$showMsg();
				res.message.goods_introduce = res.message.goods_introduce.replace(/<img/g, '<img style="display:block;"')
					.replace(/webp/g, 'jpg')
				this.goods_info = res.message;
			},
			preview(i) {
				uni.previewImage({
					current: i,
					urls: this.goods_info.pics.map(x => x.pics_big)
				})
			},
			onClick(e) {
				if (e.content.text === "购物车") {
					uni.switchTab({
						url: "/pages/cart/cart"
					})
				}
				//if(e.content.text === "店铺"){}
			},
			buttonClick(e) {
				if (e.content.text === "加入购物车") {
					const goods = {
						goods_id: this.goods_info.goods_id,
						goods_name: this.goods_info.goods_name,
						goods_price: this.goods_info.goods_price,
						goods_count: 1,
						goods_small_logo: this.goods_info.goods_small_logo,
						goods_state: true                         // 商品的勾选状态
					}
					this.addCart(goods);
				}
			}
		}
	}
</script>;

<style lang="scss">
	.goods-detail {
		// 给页面外层的容器，添加 50px 的内padding，
		// 防止页面内容被底部的商品导航组件遮盖
		padding-bottom: 50px;
	}
	swiper {
		height: 750rpx;

		image {
			width: 100%;
			height: 100%;
		}
	}

	.goods-info-box {
		padding: 10px;
		padding-right: 0;

		.goods-price {
			font-size: 18px;
			color: #c00000;
			margin: 10px 0;
		}

		.goods-info-body {
			display: flex;
			justify-content: space-between;
			font-size: 12px;

			.goods-name {
				margin-right: 10px;
			}

			.favi {
				display: flex;
				flex-direction: column;
				align-items: center;
				width: 120px;
				border-left: 1px solid #efefef;
				color: gray;
			}
		}

		.kd {
			margin: 10px 0;
			font-size: 12px;
			color: gray;
		}
	}

	.goods_nav {
		position: fixed;
		bottom: 0;
		left: 0;
		width: 100%;
	}
</style>